Seal-lock.



t No. 874,712. PATENTED DEC. 24, 1907.

B. TYDEN.

SEAL LOCK.

APPLICATION FILED JUNE 11. 1906'.

' 2 SHEETS-SHEET 1.

Fig.1

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No. 874,712. PATENTED DEG. 24, 1907. E. TYDEN.

. SEAL LOCK.

1 APPLICATION FILED JUNE 11. 1906.

2 SHEETS-SHEET 2.

EMIL TYDENOF HASTINGS, MIGHIGAN.

I SEAL-LOCK.

Specification of Letters Patent.

Patented Dec. 24, 1907.

Application filed June 11. 1906. Serial N01 321,092.

To all whom it may concern.

Be it known that I, EMIL TYDEN, a citizen of the United States, residingat Hastings, in the county of Barry and State of Michigan, have inventednew and useful Improvements in Seal- Locks, of which the following is aspecification, reference being had to the accompanying drawings, forminga part thereof.

This invention relates to a class of locks adapted to be used forsecuring the closuresdoors or coversof boxes, cabinets, cars andapartments so that a rupturable seal may be applied which shall beremovable only by rupture, and which will necessarily be ruptured in theforcible opening of the closuredoor or cover.

It consists in the features of construction shown, described and set outin the claims.

In the drawings :Figure 1 is a plan view of a portion of the lid of abox secured by a lock embodying the invention. Fig. 2 is a section atthe line 22 on Fig. 1. Fig. 3 is a section at the line 3-3 on Fig. 1.Fig. 4 is a view similar to Fig. 3 so far as the lock is concerned, thecover being removed and the locking bolt being shown in position foropening the closure. Fig. 5 is a detail section at the line 5-5 on Fig..3 showing the bolt turned for disen aging thecatch nose to permit thecoverto e lifted. Fig. 6 is a plan view of portion of a box having thelid secured by a seal lock embodying a modification of the inventionshown in the preceding figures. Fig. 7 is a section at the line 77 onFig. 6. Fig. 8 is a section at the line 8-8 on Fig. 7. Fig. 9 is a viewsimilar to Fig. 7 showing the parts in position for receiving the seal,the lid being closed but securing the bolt at unlocked position.

In the drawings, 1 represents one side Wall of the box, cabinet orapartment to be secured by a cover or door represented at 2. The lockwhose case or bolt-supportin element, 3, is-shown secured to the wal 1,comprises in addition to said case, 3, a bolt 4, and as ring, 5.

6 is a p ate secured to the door or cover, 2, having an aperture, 6,through which the head of the bolt passes when the door or cover isclosed. The head of the bolt which thus extends through the aperture, 6,is an L-shaped hook, 4, whose reversed terminal, 4", is adapted to passthrou h a hole, 7*, in

the rupturable seal, 7, and t ence. to extend backt rough the aperture,6, in the late, 6, for retaining the seal when the b0 t is in lockedposition. The bolt head has also a sloping-faced tooth, 4:, having anabrupt shoulder or face toward the plate, 6, and seal, 7, and adapted tooverhang the margin of the aperture, 6 of the plate and 7 of the seal,and thus to engage the cover or door, 2, to prevent its accidentalopening when no seal is present, and also to relieve the seal of therupturing strain which would result from any movement tending to 0 enthe door if it were not thus engaged by the said tooth. The outer faceof the tooth, a9, is sloped for encounter with the under edge of theaperture, 6*, of the plate or of the corre sponding aperture in thecover when the latter is closed. The sprin 5, is a flat piece of steelsecured at one en to the case and having the, other end bearinglaterally against the side of the bolt, and the bolt is cutaway at oneside forming an abrupt shoulder, 4 and a plate bearing surface, 4,

for the spring. The position of the cut away surface, 4 of the shoulder,4, with respect to the hook head, 4*, of the bolt isv such that the bolthead is in position shown in Fig. v1 adapted to register with and enterthe aperture, 6*, of the plate, 6, when the 5 ring is .lodged on theface, 4 and above the. shoulder, 4, of the bolt. In this position thede-' vice operates as a simple s ring catch.

The vtooth, 4, of the b0 t head being encountered by the margin of the aerture, 6,

as the cover is closed, and the b0 t being defiected by such encountersufiiciently to permit the tooth to pass through the aperture, thepressure of the flat spring, 5, against the flat face, 4 of the boltexerting an elastic pressure upon the bolt, tends to resist the turningmovement and retract the bolt back through the angle through which it isturned while the tooth is passing through the aper ture, and by suchretraction brings the tooth back into position for engagement outsidethe plate overhanging the margin of the aper 'ture. In this position theterminal, 4', of

the bolt, as stated, extends back through the a erture, 6*. When a sealis to be applied t e bolt will be turned quarter wa around to theposition shown in Fig. 4 and t en with drawn len thwise until stopped bythe crosspin, 4*, w 'ch is set through its lower end and stops a ainstthe lower end of the 0 .80 or bearlng rame, 3. In this position the. endof the spring, 5, bears against the cylindrical surface of the boltbelow the shoulder, 4 and the bolt being now turned back into normalposition, as shown in dotted line in Fig. 4, t e cover may be closed,the head of the bolt registering with the" aperture, 6*, and passingthrough it, and a seal, 7, being laid on the upper side of the platewith its aperture, 7, in position under the end of the terminal, 4 thebolt may be thrust inward, the terminal passing through the aperture ofthe seal, and the spring sna ping above the shoulder, 4 preventing thelongitudinal withdrawal of the bolt and thus securing the seal. Theseal, by its extent over the plate,

6, across the aperture, 6*, and by the fact that the aperture, 7 is notlarge enough to permit the tooth, 4, of the bolt head to pass throughit;prevents the opening of the cover,

even when the bolt is sprung aside to disengage the tooth, 4", from theplate, because to pass through the aperture the tooth would have to tearaway the portion of the seal around the aperture, 7 thereof whichoverlies the aperture, 6*, under the abrupt shoulder of the tooth. Suchrupture of the seal would disclose the fact that the cover had beenforcibly opened. in order that the seal may be readily ruptured by oneauthorized to do so, a slit, 7 extends from the aperture, 7 nearly tothe edge of the seal, so that it is readily ruptured at the end of theslit. 1 The seals are preferably made of thin sheet metal, as tin, orthey may be made of card of suitably tough texture, For the purpose ofsecuring the bolt at the position shown in dotted line in Fig. 4, thatis, the position at which the cover may be shut 'down to engage with itbefore applying the seal and leaving it in position to receive the seal,the bolt has a notch, 4 on the side opposite the flat seat, 4 andshoulder, 4 and this notch is adapted for engagement with theedge of theupper bearing of the bolt at 2*, and is forced-into such engagement bythe spring actin at the opposite side when the bolt is withdrawn to theposition shown .in dotted line in Fig. 4.

In Figs. 6 to 9 inclusive, there is shown a modified form of lockembodying the same invention as defined by certain characteristicfeatures. In this form, the case of the lock may be made from twopieces,the piece, 11, of sheet metal struck up in a die to form a box,and having formed upon it, protruding inwardly with respect to the boxcavity, bosses, 12 and 12, upon which, respectively, are mounted withinthe case the two elements of the lock consisting of the bolt, 13, andthe dog, 14. The other piece of the case, 15, is apl'ate, whichmay havecorresponding bosses, 16, of which one is seen in Fig. 8, struck up onthe face which is to be the inner face when the two arts of the case aresecured together, so t at the two pieces meet head to head, and they mayserve as the means of securing the two pieces of the case together byshort bolts or screws, 18, 18,

which will be completely inclosed within the recesses or cavities formedby striking up the bosses. The two plates of the case may also besecured by the olts which secure it to the inner side of the box takingthrough the flanges, 19, 19, of the first mentioned part and through thecorresponding margins of the plate, 15. j A lug, 21, is struck up fromthe plate, 15,-opposite the lower end of the dog, 14, and the dog has acentering boss, 14, facing the lug, 21, for lodgmentof a coil spring,22, which shall react between thetail of the dog and the lug, 21, tendinto force the head, 14", of the'dog toward 51c proximate edge of thebolt, 13, which is,provided with a recess or notch, 13, for engagementof the nose ofthe dog and a sloping projection forming the under side ofsaid notch and the approach thereto, so that when the bolt is pushedfrom the elevated position shown in Fig. 9, the dog, whose nose, 13, isheld against the edge of the bolt by the spring, is crowded back overthe sloping approach and is thrust by the reaction of the spring intothe notch or recess, 13 for securing the bolt at locking position shownin Fig. 7 The head of the bolt which protrudes from the case is in theform of a hook, 17, of which the end, 17, projects back in the directionof the lengt hereinafter explained. This hook. head is adapted to enterthe bolt aperture,'6, of'the bolt-receiving plate or hasp plate, 6,which of the bolt-for engaging the seal as is mounted upon the outerside of thecover or otherwise suitably secured thereto. At the edge ofthe bolt opposite that from which the hook, 17, projects, it haspreferably a sloping nose, 17", which is encountered by the margin ofthe bolt aperture, 6, as the plate, 6, is closed down over the bolt; andin such encounter with the upper sloping edge of the nose, 17 the boltis-forced edgewise against the pressure of the spring-pressed dog, 14,to permit the plate to pass over the nose, the spring-pressed dogforcing the bolt back to normal position at which the nose, 17 overhangsthe margin of the bolt'aperture and engages the plate, 6, for preventingthe accidental disengagement and opening of the cover. The case element,11, has an aperture, 11, in position to permit the finger of the oerator to be inserted back of the tail of the dbg, 14, for pressing thedog against the tension of the spring to disen a e its nose, 14", fromthe aperture, 13 o t e bolt, so that the bolt may be drawnlongitudinally a distance which is permitted by the length of the slot,13", ofthe bolt, by which the bolt is engagedwith the boss, 12, of thecase. The dog being released from the pressure of the finger as soon asthe bolt is started away from bolt opposite the dog to become engagedcrane "withthe edge wall, 1 1 of the case at the end case.

margin of the bolt aperture, 11, therethrough, and the bolt is thus.retained at withdrawn position until released by the operator.

, It will'be observed. that the lock above described operates as anautomatic catch for holding the, cover of a box or a hasp which mayfasten such cover, and that it is adapted 'to be released at will foropening the box. The specialpurpose for which certain features areprovided, however, is to adapt the lock to cooperate with a rupturableseal to prevent the box from being 0 ened, except in such manneras torupture t e seal unless the latter has been-first independently ruptured and removed. For this purpose, 1 cm loy a seal, 20, which is adisk, preferably, of t in sheet metal, having an aperture, 20*, ofsuitable size to be entered by the terminal, 17, of the hook, 17, of thebolt. A slot or rift is made from the aperture, 20*, of the sealnearlyto the margin, so that it may be .easily ruptured at the end ofthe rift at the margin. The seal is applied by withdrawing the bolt, asabove described, until the notch, 13, becomes engaged with theedge ofthe At this position the end of the terminal, 17, of the bolt hook isabove the upper surface of the plate, 6, andthe seal disk may be passedunder it and up onto the terminal, 17, which will enter the a erture,20. The

bolt being new disengage at the notch, 13*,

from the case and pushed inward, will be locked to the dog, 14; and thecase being within the box and the aperture, 11, being inaccessible,there is no means for disengaging the bolt from the dog to permit the bet to bedrawn upward again for releasing the seal, and any attempt toopen the cover forcibly will rupture the seal it persisted insufiiciently to open the cover.

It will be obvious that this seal lock may be applied and operated inthe manner described in any position or situation in which the door,cover or closure of any sort which is retained by the bolt preventsaccess to the aperture, 11*, of the case through which alone the do canbe reached for disengaging the b0 t, and Ldo not limit myself to anyparticularsituation orcharacter of device, whether box, cabinet or otherinclosed room or receptacle.

1 claim 1. A seal lock comprising a bolt which is mounted for twomovements, one longitudinal and the other transverse to thelongitudinal'movement; an element which adapted to be engaged by thebolt in said transverse movement for securing a closure said bolt having,means for engaging such element; a rupturable seal lodgedln positionob'struct ing'movement of said elements for opening the closure, thebolt having means engaging the seal by longitudinal movement of the boltinward for retaining theseal in such obstruct.- ing position, andautomatic means engaging the bolt to retain it at such seal-retainingposition.

2. A seal lock comprising a belt which has two movements, onelongitudinal and the other transverse thereto said bolt being providedwith'mean's for engaging a-closure; a closure which is engaged in saidtransverse movement of the bolt and a rupturahle seal,

lodged outside the closure and obstructing the opening movement of thelatter, the bolt having means for'engaging the seal bylongitudinalmovement of the bolt inward and auto.- -rnatic means engaging andretaining the bolt at the limit of such inward movement.

3. In a seal lock comprising a bolt which is mounted for two movements,one longitudinal and the other transverse to the longitudinal movement,an element which is adapt ed to be engaged by the bolt in saidtransverse movement for securing a closure said bolt having means forengaging such element; aspring which reacts to cause such movement; arupturable seal lodged in position obstructing the movement 'of saidelementfor opening the closure, the bolt having means for engagin theseal by longitudinal movement of the bit inward for retaining the sealin such obstructing position, saidspring'being ada ted for engaging thebolt to retain it, at sea -1"etaining position. I

4. A seal lock comprising a bolt which has movement of the bolt; aspring which reacts to causesuch movement; a rupturable seal lodgedoutside the closure and obstructing the movement of the latter, the bolthaving means for engaging the seal by longitudinal movement of the boltinward, and being adapted also for engagement by the spring forretention thereby at the limit of such in-v ward movement.

I 5. A seal lock comprising a bolt which is mounted for two movements,one longitudinal and the other transverse thereto; a plate which isapertured to permit the bolt to be thrust through it, the bolt having aprojection which engages the margin of the aperture b the transversemovement of the bolt after it is thus thrust through the plate to securethe plate against movement relative to the bolt; a rupturable seallodged in osition obstruct- 1 ing such movement of the p ate, the bolthaving means engaging the seal b inward longitudinal movement of the b0t and adapted by such engagement to retain the seal in said 0 structingposition, and automatic means engaging the bolt to retain it at suchsealretaining position.

6. A seal lock comprising a bolt which has two movements, onelongitudinal and the &

other transverse thereto a plate which is to be locked by the bolt,having an aperture through which the bolt is thrust in the movement ofthe plate to osition at which it is to be secured by the bol the bolthaving a projection which engages the margin of the aper ture of theplate by the transverse movement of the bolt after it is thus thrustthrough the plate; a ru turable seal lodged outside the plate and ostructing the opening movement of the latter, the bolt having means forengaging the seal by longitudinal movement of the meme bolt inward afterits said transverse move ment for engaging the plate by the projection,and automatic means engaging .and re- 15 of June, A. 1)., 1906.

EMIL TYDEN,

Witnesses:

M. L. Coon, A. A. ANDERSON.

